n. Slang A stupid person; a dolt. [Reduplication and alteration of DUMB.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. A hollow-point small-arms bullet designed to expand upon impact, inflicting a gaping wound. [After Dum Dum, a town of northeast India.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.